Window-screen.



No. 788,439. PATENTED APB.. 25, 1905.

' H. E. SOUTHWORTH. l

WINDGW SCREEN.

APPLIGATION FILED JAN. 30. 1905.

. UNITED STATES Patented April 25, 1905.

PATENT OEEic-E.

HENRY E. SOUTHVVORTH, OF COLCHESTER, VERMONT, ASSIGNOR TO PORTER SCREENMANUFACTURING COMPANY, OF BURLINGTON,`

VERMONT.

WINDOW-SCREEN.

SPECIFICATION forming part of` Letters Patent N0. 788,439, dated April25, 1905.

Application filed January 30, 1905. Serial No. 243,247.

T0 (af/ZZ 1,071,071@ it may concern.-

Beit known that I, HENRY E. SOUTHWORTH, of Colchester, in the county ofChittenden and State of Vermont, have invented a new and usefulImprovement in Window-Screens, of which the following is aspecification.

This invention is directed to that class of extensible screens in whichthe clips that hold the screen-sections togetherare located in themeeting faces of the overlapping rails of the screen-sections as to bepractically concealed from view.

The invention consists of a screen of this class in which theoverlapping screen-section rails in their meeting faces have each twononcommunicating longitudinal grooves, lthe one inclined, the otherhorizontal, separated from one another by a solid portion of the railand are provided each with two projecting guides, (preferably ofmetal,),the one inclined, the other horizontal, to engage thecorresponding grooves in the opposite rail. It is this feature whichcharacterizes the invention and which I believe to be new with me beyondits preferred structural embodiment hereinafter described.

In the accompanying drawings, to which reference will now be made for abetter understanding of the invention, Figure l is a perspective view ofthe clip. Fig. 2 is a view of the screen. Fig. 3 is a section on line 33, Fig. 2. Fig. 4 is a horizontal section of the innler end of one ofthe overlapping sectionrai s.

The screen, except as to the clips and the parts with which it is moreimmediately associated, may be of anyl usual or suitable construction,it being composed in the present instance of two overlappingscreen-sections consisting each of top and bottom rails A, an outer endrail B, and inner end or center iron C and wire cloth or netting D,secured to the rails A B and iron C. The clips which hold the screentogether arelocated in the ends A of the rails, which extend inwardlybeyond the irons C. In the meeting faces of the rails A are formed theusual longitudinal rabbets d for reception of the edges of thewire-cloth D, which are covered, as is also usual, by the wooden stripsor moldings e. The clip itself, which is made of sheet metal, consistsof a limb a V-shaped in cross-section and a plain flat horizontal limbthese two parts being connected together along one of their longitudinaledges by a vertical back c, from which the two limbs project. One ofthese clips is secured in asuitably-shaped slot in the end A of eachrailA in such position that one-half ofthe horizontal limb b and one legof the V-shaped limb a shall project from the inner face of the rail,and these projecting p0rtions,which constitute in the present instancethe inclined and horizontal guides hereinbefore referred to, enterlongitudinal grooves f g, formed for them in the inner face of theopposite rail A, as seen in Fig. 3. The groove f, in which the leg ofthe V-shaped limb a is received and can slide, is inclined, as shown,and is located toward the outer edge of the rail. The horizontal grooveg is located. next to the inner edge of the rail. One of its sides isformed by the body of the rail, and its other sideinthe presentinstance, as a matter of convenience incident to the fact that the railis rabbeted to receive the wire-cloth,is formed by the molding orcovering-strip e, which vlls the rabbet, although the groove may bedeeper'than the rabbet, so as to extend a short distance beyond it intothe body of the rail, as shown.

It will be noted that in each rail the two grooves f and g, in which theprojecting inclined and horizontal guides on the other rail slide, areabsolutely separate and non-communicating, (except, of course, at theend where the clip is inserted,) there being interposed between them asolid portion of the rail of considerable area, the two guides beingseparated by a corresponding interval. By

this construction the strength and stability of the screen arematerially enhanced, the grooves may make a close fit with the guides,while at the same time the screen-sections will move smoothly on eachother without liability to stick or jam. This I believe to be broadlynew with me.

Having described my improvement, what I claim herein as new, and desireto secure by Letters Patent, is as follows:

l. In an extension-screen, two screen-seotions the overlapping rails ofwhich have in their meeting faces, each a longitudinal' zontal limb 71and the vertical back c interposed between and Connectingl the samealong one of their longitudinal edges in combination with overlappingscreen-section rails having separate grooves f, g, to engage the limbsa, I), respectively, substantially as and for the purposes hereinbeforeset forth.

In testimony whereotl I aix my signature in presence of two witnesses.

HENRY E. SOUTHWORTH.

Vitnesses:

F. H. BiewooD, L. R. STINsoN.

